You are inside
the collapsed roof of Krematorium II at Birkenau. As the Russian army drew closer
the Nazis, in an effort to hide their crimes, blew this up, and also Krems III
and V, ample proof they were well aware they had committed war crimes, crimes
against humanity, and genocide. As you scroll you will notice the steel shoring.
This is used to hold the original brick in place. Past the pile of bricks is
again, BIa, the women's camp. Sometimes women would be brought here for gassing
along the path, visible here on the other side of the bricks.

"Located outside
the fencing around the barracks at Birkenau, the crematoria in a certain sense
constituted a separate complex of equipment for mass destruction. Crematoria
II and III had their own barbed-wire fencing with two gates leading into the
grounds of Crematorium II, and one to Crematorium III. Trees and bushes planted
around them formed a green belt (“Grüngürtel) that camouflaged
them from unwelcome eyes, above all those of the prisoners in nearby barracks."*